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Table 1 The results of comparing the coronavirus disease characteristics between the case and control groups

From: Does endometriosis increase susceptibility to COVID-19 infections? A case–control study in women of reproductive age

Variable Categories Case group (N = 507) Control group (N = 520) p-value
Number Percent Number Percent
H1N1 infection No 462 91.1 490 2.0  < 0.001a
Yes 44 8.7 10 2.0
H1N1 vaccine No 488 96.3 495 97.4 0.212a
Yes 18 3.6 13 2.6
Travel No 470 92.7 370 69.7 0.059a
Yes 36 7.1 24 4.5
Social distancing No 397 78.3 267 67.8 0.256a
Yes 109 21.5 127 32.2
Close contact No 475 93.7 358 91.8 0.979a
Yes 31 6.1 32 8.2
COVID-19 infection No 490 96.6 515 97 0.942a
Yes 16 3.2 16 3
symptoms None 479 94.5 508 95.7  < 0.001a
Fever 0 0 8 1.6 0.004b
Sore throat 7 1.4 6 1.2 0.745a
Nasal congestion 8 1.6 2 0.4 0.050a
Cough 7 1.4 6 1.2 0.747a
Shortness of breath 8 1.6 6 1.2 0.558a
Headache 4 0.8 3 0.6 0.486a
Weakness and muscle pain 5 1.0 13 2.6 0.094a
Reduced sense of smell and/or taste 9 1.8 7 1.4 0.622a
Ocular problems 4 0.8 1 0.2 0.179b
Other 11 2.2 0 0  < 0.001b
Screening No 477 94.1 476 89.6 0.137a
Yes 29 5.7 42 7.9
Admission No 505 99.6 520 100 0.494b
Yes 1 0.2 0 0
Isolation No 493 97.2 420 97.2 0.790a
Yes 13 2.6 12 2.8
  1. Results of: aChi square test, bFisher’s exact test